– Lat/Long: 48.71° N 121.99° W
South Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 4 pm Tue 13 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Tue 13 Oct Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Warm (max 21°C on Thu afternoon, min 11°C on Tue afternoon). Wind will be generally light. | Days 5–7 Weather SummaryHeavy rain (total 26mm), heaviest during Sat morning. Warm (max 22°C on Fri afternoon, min 5°C on Sat night). Wind will be generally light. | ||||||||||||||||
Tue 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | | | | |  |  |  | | | | | |
cloudy | light rain | some clouds | clear | clear | clear | clear | clear | some clouds | clear | rain shwrs | heavy rain | rain shwrs | rain shwrs | some clouds | some clouds | light rain | |
Cloud base (m) | 1900 | 1950 | 850 | 1750 | 8700 | 9400 | 3000 | 600 | 650 | 5600 | 5550 | 4350 | |||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | 0.4 | — | — | — | — | — | — | — | — | 2 | 14 | 10 | 0.2 | — | — | 0.1 |
max °C | 13 | 11 | 13 | 15 | 12 | 18 | 21 | 16 | 20 | 22 | 15 | 11 | 8 | 6 | 9 | 11 | 10 |
min °C | 11 | 11 | 11 | 15 | 12 | 12 | 20 | 15 | 15 | 19 | 11 | 9 | 8 | 5 | 5 | 11 | 9 |
chill °C | 11 | 11 | 11 | 15 | 12 | 12 | 20 | 15 | 15 | 19 | 10 | 7 | 6 | 4 | 4 | 11 | 9 |
Freezing level m | 2750 | 2750 | 3350 | 3550 | 3850 | 3850 | 3800 | 3850 | 3800 | 3600 | 2850 | 1850 | 1650 | 1700 | 2250 | 2550 | 2600 |
 | — | — | 7:26 | — | — | 7:26 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — |
 | 6:22 | — | — | 6:21 | — | — | 6:19 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Warm (max 21°C on Thu afternoon, min 11°C on Tue afternoon). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Heavy rain (total 26mm), heaviest during Sat morning. Warm (max 22°C on Fri afternoon, min 5°C on Sat night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
SHIP3629 | |||||
 | |||||
SHIP4595 | |||||
SHIP4782 | |||||
SHIP10881 | |||||
SHIP10014 |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.